The Australian Environment Minister, Tanya Plibersek, has expressed concern about the impact of salmon farms on the critically endangered Maugean skate in Macquarie Harbour and has written to the Tasmanian government to reconsider the future of these farms. The federal threatened species scientific committee has warned of the high risk of extinction for the skate due to the salmon industry's impact. Plibersek is examining requests to reconsider the salmon industry's approvals, which, if valid, could lead to a pause in operations until new approvals are obtained.